Shock simulation generator
View Patent ↗This is directed to systems, methods, computer programs and other means for shock testing a piece of equipment, i.e., the target. The target can be mounted to a shock generation machine, which is then slammed into a sturdy foundation. The impact can result in multi-axis loads, depending on how the machine is configured, while also simulating the modal frequency response of an object, such as a naval ship's deck.
1. A shock generation system, comprising:
a cage configured to receive a target device that is to be shock tested;
at least one swing arm connected to the cage;
a resonation simulator that simulates a frequency response resulting from to a shock; and
a locking assembly that is used to secure the cage in response to the shock.
2. The shock generation system of claim 1 further comprising:
at least one hinging mechanism; and
a foundation structure, wherein:
the at least one hinging mechanism connects the at least one swing arm to the foundation structure.
3. The shock generation system of claim 2 , wherein the locking assembly comprises:
a locking pin; and
a latch assembly that is integrated into the foundation structure.
4. The shock generation system of claim 2 , wherein the locking assembly comprises:
a locking pin; and
a latch assembly that is integrated into the resonation simulator.
5. The shock generation system of claim 2 , wherein the locking assembly comprises:
a locking pin; and
a latch assembly that is integrated into the cage.
6. The shock generation system of claim 2 , wherein the locking assembly comprises:
a latch assembly; and
a locking pin that is integrated into the foundation structure.
7. The shock generation system of claim 2 , wherein the locking assembly comprises:
a latch assembly; and
a locking pin that is integrated into the resonation simulator.
8. The shock generation system of claim 2 , wherein the locking assembly comprises:
a latch assembly; and
a locking pin that is integrated into the cage.
9. The shock generation system of claim 2 , wherein the resonation simulator is configured to simulate how a ship deck resonates in response to a close proximity explosion.
10. The shock generation system of claim 2 , wherein the resonation simulator comprises:
at least one tunable coil mount;
a top plate; and
a bottom plate, wherein the at least one tunable coil mount is located between the top plate and the bottom plate.
11. The resonation simulator of claim 10 , further comprising:
at least one impact release latch mechanism.
12. The shock generation system of claim 2 , wherein the resonation simulator is configured to resonate at 6 Hz to 8 Hz.
13. The shock generation system of claim 2 , wherein the resonation simulator is configured to resonate between 12 Hz to 16 Hz.
14. The shock generation system of claim 2 , wherein the at least one hinging mechanism includes an adjustable clevis that receives a clevis pin.
15. The shock generation system of claim 2 , wherein the foundation structure comprises at least sixty thousand pounds of mass.
16. The shock generation system of claim 1 further comprising at least one removable weight.
17. The shock generation system of claim 1 further comprising at least one accelerometer that measures at least one aspect of the shock.
18. The shock generation system of claim 1 , wherein the at least one swing arm comprises:
a first swing arm; and
a second swing arm.
19. A method of testing a target's response to a shock, comprising:
mounting the target in a cage;
elevating the cage to a height;
causing the cage to fall from the height, thereby causing an impact shock to the cage;
physically coupling the cage to a foundation structure in response to the cage falling from the height; and
simulating a frequency response resulting from the impact shock.
20. The method of claim 19 , wherein causing the cage to fall, further comprises causing the cage to fall at an angle, wherein falling at the angle causes the target to experience a rotational acceleration in response to the impact shock.
21. The method of claim 19 , wherein causing the cage to fall, further comprises causing the cage to fall at an angle, wherein falling at the angle causes the target to experience a simulated athwartship acceleration in response to the impact shock.
22. The method of claim 19 , wherein physically coupling the cage to the foundation further comprises using a locking assembly.
23. The method of claim 19 , wherein simulating the frequency response further comprises utilizing at least one tunable coil mount.
24. The method of claim 19 , wherein simulating the frequency response further comprises utilizing air cylinders.
25. The method of claim 19 further comprising measuring the impact shock.
26. The method of claim 19 further comprising calculating the height by dividing a desired impact velocity by twice the Earth's gravitational force.
27. The method of claim 19 further comprising mounting at least one additional weight onto the cage.
28. The method of claim 19 further comprising:
compressing a resonation simulator prior to elevating the cage; and
generating additional vertical velocity in response to the impact shock.